Press for making artificial-stone slabs



(No Model.) '2 Sheets-Sheet 1.

F. SCI-IILLINGBR.

PRESS FOR MAKING ARTIFICIAL STONE SLABS. No. 349,861. Patented Sept. 28,1886.

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WITNESSES: llVVE/VTO e/ zM/z I I By 7 ggyvyg/ I I A Hoe/VH3 N PETERS,Pnmo-umu n hu, Withinginn, I). c.

(No Model.) 2 Sheets-Sheet 2.

F. SOHILLINGER. PRESS FOR MAKING ARTIFICIAL STONE SLABS.

No. 349,861. PatentedSept.28,l886.

W/T/VESSES: M/VE/W OI? UNITE STATES PATENT FFICE.

FREDERICK SOHILLINGER, OF TOLEDO, OHIO.

PRESS FOR MAKING ARTIFICIAL-STONE SLABS.

SPECIFICATION forming part of Letters Patent No. 349,861, datedSeptember 28, 1886.

Application filed March 9, 1880.

To all whom it may concern.-

Be it known that I, FREDERICK SCHIL- LINGER, of Toledo, in the county ofLucas and State of Ohio, have invented certain new and usefulImprovements in Machines for Making Artificial-Stone Slabs, of which thefollowing is a specification.

The object of my invention is to provide a new and improved machine forshaping and compressing artificial-stone slabs which are to be used formaking pavements, walks, lining tanks, covering walls, and for othersuitable p u rp oses.

The invention consists in the combination, with the press-table, of anupright frame on the same, a pressing-screw in said frame, a follower onthe lower end of the screw, gearing for .moving the screw in thedirection of its length, a press-plate hinged on the presstable, onwhich plate the slab is pressed, and of adjustable gage or holding-rodsfor bold ing the molds on thehinged press-plate, all as will be fullydescribed and set forth hereinafter, and pointed out in the claims.

In the accompanying drawings, Figure l is a front View of my improvedmachine for making artificial stone slabs, parts being broken out andothers in section. Fig. 2 is a side view of the machine.

Similar letters of reference indicate sponding parts.

The press-table A is secured on the legs A, or any other suitablesupport, and 011 said table a strong upright frame, B, is secured,provided near its upper end with the cross-pieces B, forming a neckthrough which a powerful screw-spindle, O, can pass, which also passesthrough a neck in the top crosspiece of the frame B. The screw-spindle 0also passes through the nut D, located between the upper cross-piece, B,and the top cross-piece of the frame B, which nut is provided with thebeve1 cog-wheel E on the shaft F, journaled in one of the uprights ofthe frame B, and provided with a wheel, G, for revolving it; or, inplace of the said hand-wheel, it may be provided with belt-pulleys orother suitable devices for giving it rotary motion. On the lower end ofthe screwspindle O the follower H is mounted, which is provided with asocket for receiving the lower end of the screw-spin- Serial No.194,594. (No model.)

dle. \Vithin a recess or opening in the follower or press-block H a nut,J, is mounted on the spindle, said nut being provided with apertures J,into which a lever can be inserted for the purpose of turning the nut. Alatch or key, K, is pivoted 011 the follower, and can be swung into avertical guide-groove, L, of one of the uprights B. The follower J isalso provided with an aperture, XV, for receiving the end of the rod, bymeans of which the follower can be moved to and fro to remove anysurplus plastic material on the mold.

The press-plate M, which has a perfect smooth upper surface, is securedto and projects from a shaft, N, mounted to turn on its longitudinalaxis in lugs N on the press-table, said shaft being provided with thearm 0, on which the weight 0 is held adj ustably. The presstable isprovided with lugs or supports M, on which the swinging end of thepress-plate M can rest. The latch P is pivoted on the presstablc, and isacted upon by a spring, 1?, which presses the upper edge of the latchover the top edge of the swinging end of the pressplate when said plateis swung down. A rod, Q, provided with a handle, Q, is connected withthe latch P, and extends under the pressplate M to the front edge of thepress-table.

The racks R and R are mounted to slide below the press-table and in alongitudinal aperture in the same, respectively, and both engage with apinion, S, mounted on the transverse shaft R having a handle, T forturning it. The ends of the racks R R are bent up, and in the upper endsof said upwardlyprojeeting parts the gage-rods V are held adjustably bythe screws V.

The operation is as follows: The press-plate M is swung down upon thesupports on the table A, and is locked in place by the latch P. The moldis placed upon the press-plate, and is adjusted and held in. place bythe gagerods V, which can be adjusted by turning the pinion S in onedirection or the other to move the said rods V toward or from eachother. The plastic mass is then placed into the mold and the followerlowered by revolving the shaft F, whereby the nut D is revolved and thescrew 0 is moved downward. The latch K is previously swung into thegroove L to guide the follower. The follower is pressed firmly on theplastic mass in the mold, which mass is compressed. If it is desired toexert a greater pressure on the plastic mass, a lever is inserted intothe apertures J of the nut J, which is turned down to rest on the bottomof the cavity or recess in the follower. When the press-block is to beremoved, the direction of the rotation of the shaft Fis reversed,whereby the screw and follower are raised. The pinion S is then turnedto move the gage-rods V from over the upper surface of the pressplate M,the latch P is disengaged from said presser-block by means of thehandle-rod Q,

and the press-plate M and the molded slab thereon are swung up byswinging down the Weight 0 on the arm 0. The mold-slab block can then beremoved very easily from the press-plate. V

I am aware that Letters Patent Nos. 78,221 and 203,811 were issued,respectively, to Me- Afee and Austin on the 26th day of May, 1868, andthe lath day of May, 1878, for improvements in brick-machines, and I donot claim as my invention the construction set forth in thesaid patents.v

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A. screw-press provided with a vertical guidegroove in one of theuprights, and a latch fitting in said groove,pivoted on the follower, for the purpose ofguiding the same,substantially as shown and described.

2. A press for making artificial-stone slabs, provided with a hingedpress-plate on the press-table, on which plate the slabs are pressed,substantially as shown and described.

3. Apress for making artificial-stone slabs,

constructed with a press-plate hinged on the press-table and a weightedarm connected with the said hinged press-plate, substantially as shownand described.

4. A press for making artificial-stone slabs, constructed with apress-plate hinged on the press-table, and provided with a weighted arm,and-a latch for locking the swinging end of the press-plate on thetable, substantially as shown and described. v

5. In a press for making artificial-stone slabs, the combination, withan upright frame, a screw, and follower, of a press-plate hinged on thepress-table, a weighted arm connected with the press-plate, a latch forlocking the swinging end of the press-plate on the table, and a rodconnected with the latch for operating the latch, substantially as shownand described. I p

6. A press for making artificial-stone slabs, constructed of apressplate hinged on the press-table and mechanism for moving thegage-rods toward and from each other above the press-plate,substantially as shown and described.

7. A press for making artificial-stone slabs, constructed with apress-block hinged on the press table, gage rods extending over thepress-plate, racks connected with said gagerods, and a pinion engagingsaid racks at diametrically opposite points, substantially as shown anddescribed.

In testimony that I claim the foregoing as I my invention I have signedmy name in presence of two subscribing witnesses.

FREDERICK I SCHILLINGER. Witnesses: JOHN R. BALSMEYER,

V. BRAUN.

